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CR009A Copper vs. EV31A Magnesium

CR009A copper belongs to the copper alloys classification, while EV31A magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is CR009A copper and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
44
Elongation at Break, % 15
3.5
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 43
17
Tensile Strength: Ultimate (UTS), MPa 230
260
Tensile Strength: Yield (Proof), MPa 140
170

Thermal Properties

Maximum Temperature: Mechanical, °C 200
200
Melting Onset (Solidus), °C 1040
590
Specific Heat Capacity, J/kg-K 390
1000
Thermal Conductivity, W/m-K 380
86
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
18
Electrical Conductivity: Equal Weight (Specific), % IACS 100
90

Otherwise Unclassified Properties

Density, g/cm3 9.0
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 83
330
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
65
Strength to Weight: Axial, points 7.1
40
Strength to Weight: Bending, points 9.3
50
Thermal Diffusivity, mm2/s 110
47
Thermal Shock Resistance, points 8.1
16